页岩气藏地质因素敏感性分析——以平桥区块为例  

Sensitivity Analysis of Geological Factors in Shale Gas Reservoirs——A Case Study of Pingqiao Area

作　　者：张莉娜[1] 张耀祖 刘欣[3] ZHANG Lina;ZHANG Yaozu;LIU Xin(Research Institute of Petroleum Exploration &Development, East China Company, SINOPEC, Nanjing 210000, China;College of Petroleum Engineering, China University of Petroleum, Qingdao 266000, China;Institute of Engineering Technology, East China Company, SINOPEC, Nanjing 210000, China)

机构地区：[1]中国石化华东油气分公司勘探开发研究院,江苏南京210000 [2]中国石油大学(华东)石油工程学院,山东青岛266000 [3]中国石化华东油气分公司石油工程技术研究院,江苏南京210000

出　　处：《广东石油化工学院学报》2022年第1期1-5,共5页Journal of Guangdong University of Petrochemical Technology

基　　金：“十三五”国家科技重大专项大型油气田及煤层气开发项目(2016ZX05061);中国石化“十条龙”重大科技攻关项目(P19017-3)。

摘　　要：以平桥页岩气藏作为研究对象,在前人研究基础上利用数值模拟和动态分析方法,对页岩气藏开发中的地质敏感性因素进行分析,如储层基质渗透率、地层有效厚度、地层压力系数等。分析发现地质储量随气藏有效厚度、地层压力系数、兰氏体积的增加有不同程度的增加,地质储量与兰氏压力成反比关系;页岩气藏的采出程度与有效厚度、兰氏体积成负相关性。其中,储层基质渗透率、地层压力系数对页岩气藏开发的影响因子最大。最后根据平桥区块地质资料及开发数据得到,平桥页岩气藏的地质参数界限为储层基质渗透率≥5×10^(-5)mD,有效厚度20~30 m,地层压力系数≥1.2。Taking Pingqiao shale gas reservoir as the research object,the paper uses numerical simulation and reservoir engineering methods on the basis of previous studies to analyze geological sensitivity factors in the development of shale gas reservoirs,such as reservoir matrix permeability,Effective formation thickness,formation pressure coefficient,etc.It is found that the geological reserves increase in varying degrees with the increase of the effective thickness of the gas reservoir,the formation pressure coefficient,and the Lang&apos’s volume.The relationship between the geological reserves and the Lang&apos’s pressure is inversely proportional;the recovery degree of the shale gas reservoir is related to the effective thickness and the Lang&apos’s volume.There is a negative correlation.Among them,reservoir matrix permeability and formation pressure coefficient have the greatest influence on shale gas reservoir development.Finally,according to the geological data and development data of the Pingqiao area,the geological parameter values for the best development effect of the Pingqiao shale gas reservoir are:reservoir matrix permeability≥5×10^(-5) mD,effective thickness 20~30 m,formation pressure coefficient≥1.2.

关 键 词：数值模拟 地质因素分析 地层压力系数 平桥页岩气藏 正交设计 

分 类 号：TE122[石油与天然气工程—油气勘探]